@childofgod418 Yeah any of the machines are going to help your engine. But you can have the same problem I do because of it where running doesn’t necessarily hurt your lungs and heart rate. But your legs and feet just won’t be used to hitting the ground.
@childofgod418 Is it hot, humid or both? I used to do 5-6 mile runs in Singapore before work. I’d lose pounds of water that had to be replaced but I was fine. Talking ~100 degrees and absurdly humid.